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ID: S21SEC-017-en
Title: Vignette /vgn/legacy/save SQL access
Date: 15/03/2003
Status: Vendor contacted and solution available
Scope: Execution of SQL SELECT calls
Platforms: All
Author: rpinuaga
Location: http://www.s21sec.com/es/avisos/s21sec-017-en.txt
Release: External
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S 2 1 S E C
http://www.s21sec.com
Vignette /vgn/legacy/save SQL access
About Vignette
--------------
Vignette develops Content Management and Application Portal Software.
Description of vulnerability
----------------------------
Vignette Software installs by default some help applications under de /vgn web directory.
One of this utilities is the Vignette Legacy Tool. This application is accessed through it's main template /vgn/legacy/edit. This template is protected by the [ NEEDS LOGIN ] directive and it's not accesible for unauthenticated users.
The problem is that the real job of this application is carried by the /vgn/legacy/save template, which is not protected.
The only check that is done is in the RECORD directive. But this check is easyly bypassed.
The check only looks for an vgn_creds cookie, but it does not check it's content. So what is only needed to do a succesful query is to put some random value on this cookie.
This way it's possible to do a SELECT query, over any SQL table that is accesible from the Vignette user that has access to the database.
Affected Versions and platforms
-------------------------------
This vulnerability has been tested in Vignette StoryServer 4, StoryServer 5 and Vignette V/5. But it seems that all currently avaliable versions are vulnerable.
Solution
--------
Insert a [ NEEDS LOGIN ] directive in the top of the source code for the /vgn/legacy/save template.
Vignette users should procceed to contact vignette throught the standard channels VOLS etc in order to get a solution.
Additional information
----------------------
These vulnerabilities have been found and researched by:
Ramon Pinuaga Cascales rpinuaga@s21sec.com
You can find the last version of this warning in:
http://www.s21sec.com/es/avisos/s21sec-017-en.txt
And other S21SEC warnings in http://www.s21sec.com/es/avisos/